Patents Assigned to Lezard S.A.
  • Container with tear-opening arrangement
    Patent number: 4284199
    Abstract: A container with tear-opening device particularly suitable for single-dose containers, obtained by the injection of thermoplastic material in opposite molds, and consisting of a closure membrane having a particularly thin tear surface as to constitute a preferential rupture zone, having a section thermically calibrated by the shrinking (on cooling after injection). A process for obtaining said containers is also disclosed and claimed.
    Type: Grant
    Filed: December 6, 1979
    Date of Patent: August 18, 1981
    Assignee: Lezard S.A.
    Inventor: Federico Bigarella